var fDesc=new Array(); fDesc[0] = "This application is used to design section profiles and determine their geometric properties for custom beam cross sections which can be composed of different materials. The use of custom extrusions is becoming almost as economical as using off-the-shelf items but you will need to calculate the properties yourself."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }